Cesium thiosulfate

Crystal structure
	__ Cs + __ S 5 + / 1− __ O 2−
General
Surname	Cesium thiosulfate
other names	Cesium thiosulfate
Ratio formula	Cs 2 [S 2 O 3 ]; Cs 2 [S 2 O 3 ] · H 2 O; Cs 2 [S 2 O 3 ] • 2H 2 O;
Brief description	colorless crystals
External identifiers / databases
Wikidata	Q65982938
properties
Molar mass	377.939 g mol −1 (anhydrous); 395.954 g mol −1 (monohydrate); 413.970 g mol −1 (dihydrate);
Physical state	firmly
density	3.74 g cm −3 (anhydrous); 3.57 g cm −3 (monohydrate);
solubility	soluble in water
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cesium thiosulfate (Cs ₂ [S ₂ O ₃ ]) is a chemical compound of cesium and a thiosulfate anion .

Extraction and presentation

Cs ₂ [S ₂ O ₃ ] · H ₂ O is obtained from an aqueous solution of Ba [S ₂ O ₃ ] and Cs ₂ [CO ₃ ].

{\ displaystyle {\ ce {Ba [S2O3] (aq) + Cs2 [CO3] (aq) -> Ba [CO3] (s) + Cs2 [S2O3] (aq)}}}

The barium carbonate is filtered off and the remaining cesium thiosulfate is crystallized out in the desiccator using a drying agent .

properties

The anhydrous cesium thiosulfate crystallizes monoclinically in the space group P 2 ₁ / c (space group no. 14) with the lattice parameters a = 646.94 (5), b = 1096.57 (8), c = 951.02 (7) pm and β = 96.025 (3) ° and four formula units per unit cell . Cesium thiosulfate also occurs as a monohydrate (Cs ₂ [S ₂ O ₃ ] · H ₂ O) and dihydrate (Cs ₂ [S ₂ O ₃ ] · 2H ₂ O). Template: room group / 14

Individual evidence

↑ ^a ^b ^c ^d ^e Verena Winkler, Synthesis and structural characterization of novel ternary thio- and selenometalates of rubidium and cesium , dissertation, Regensburg 2015; PDF .
^ ^A ^b C. Funk, T. Schleid, The Crystal Structure of the Anhydrous Cesium Thiosulfate Cs ₂ [SO ₃ S]. In: Z. Kristallogr. 2017 , Suppl. 37 , pp. 108-109, doi: 10.1515 / 9783110547153 .
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[Winkler-1] Verena Winkler, Synthesis and structural characterization of novel ternary thio- and selenometalates of rubidium and cesium , dissertation, Regensburg 2015; PDF .

[Funk-2] A ^b C. Funk, T. Schleid, The Crystal Structure of the Anhydrous Cesium Thiosulfate Cs ₂ [SO ₃ S]. In: Z. Kristallogr. 2017 , Suppl. 37 , pp. 108-109, doi: 10.1515 / 9783110547153 .

[NV-3] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.